<template>
  <div id="app">
    <div>
      <span>姓名:</span>
      <input type="text" v-model="addName" />
    </div>
    <div>
      <span>年龄:</span>
      <input type="number" v-model="addAge" />
    </div>
    <div>
      <span>性别:</span>
      <select v-model="addGender">
        <option value="男">男</option>
        <option value="女">女</option>
      </select>
    </div>
    <div>
      <button @click="add">添加/修改</button>
    </div>
    <div>
      <table border="1" cellpadding="10" cellspacing="0">
        <tr>
          <th>序号</th>
          <th>姓名</th>
          <th>年龄</th>
          <th>性别</th>
          <th>操作</th>
        </tr>
        <tr v-for="(item, index) in list" :key="item.id">
          <td>{{ index + 1 }}</td>
          <td>{{ item.name }}</td>
          <td>{{ item.age }}</td>
          <td>{{ item.gender }}</td>
          <td>
            <button>删除</button>
            <button @click="change(item.id)">编辑</button>
          </td>
        </tr>
      </table>
    </div>
  </div>
</template>
<script>
export default {
  data() {
    return {
      list: [
        {
          id: 1,
          name: "zs",
          age: 23,
          gender: "男",
        },
        {
          id: 2,
          name: "zs",
          age: 23,
          gender: "男",
        },
        {
          id: 3,
          name: "zs",
          age: 23,
          gender: "男",
        },
        {
          id: 4,
          name: "zs",
          age: 23,
          gender: "男",
        },
      ],
      addName: "",
      addAge: "",
      addGender: "",
      qwer: true,
    };
  },
  methods: {
    add() {
      if (this.qwer) {
        this.addAge.trim() || this.addAge.trim() || this.addGender
          ? ""
          : alert("请输入数据!");
        const obj = {};
        obj.name = this.addName;
        obj.age = this.addAge;
        obj.gender = this.addGender;

        this.list.push(obj);
      }
    },
    change(id) {
      this.qwer = false;
      const d = this.list.find((item) => item.id === id);
      this.addName = d.name;
      this.addAge = d.age;
      this.addGender = d.gender;
    },
  },
};
</script>
